Improvement in the mode op attaching seats to carriages



v 2 SheetsSheet 1. C. KREBS.

Carriage-Seat Lock.

Patented Dec. 7, 1869.

l I I I i V k l if [Ya (onion v m. Jaw

2 Sheets-Sheet 2. C. KREBS.

Carriage-Seat Lock.

Patented Dec. 7, 1869.

tinned scar patent CHARLES KREBS, or wns'r SPRINGFlEIiD, MASSACHUSETTS.

Letters Patent No. 97,524, dated December 7, 1869,

IMPROVEMENT IN THE 'MODE OI AT'I'AGHING SEATS TO CARRIAG-ES.

The Schedule referred to in these Letters Patent and making part of thesame.

Fi ure 1 )late 1 is a' front view of a s )riu ora g a i s catch-lock; I

Figure 2 is avertical' longitudinal section, through line G K,of fig. 1;I

Figure '3is a front view of a simple jaw-lock;

Figure 4 isa vertical longitudinal section, through line N O offig. 3; t

Figure 5 is a side view of a catch for an extension or high back;

Figure (Sis a plan view of the lower side of a seatlock and its socket;

Figure 7 is a longitudinal vertical section, through line P Q of fig. 6;

Figure 8 is a front view of a catch for an extension or high back; j

Figure 1, plate 2, is a front view of a jaw-lock, showing a section ofthe'extension or high back, with the catch attached; and v Figure 2,plate 2, a vertical section, through line X Y of fig.1..

My invention relates to a device or devices for securing auadjustableshifting-rail to a carriageseat, a modification of it being adapted forsecuring the seat to the body of the carriage, and is an improvementupon the device for which Letters Patent of the United States weregranted me, hearing date September 24, A. D. 1867, and numbered 69,224,said improvement consisting in the construction and arrangement of partsofv the device, whereby a greater bearing is obtained forthecarriage-top to rest upon, and or the adaptation of said locking-devicefor securing seats in place upon a wagon, and for securing an extensionor high back to the seat.

That others skilled in the art may be able to make and use my invention,I will proceed to describe its construction and mode of operation.

The. generalfcatures of the spring-lock or fastening shown in figs. 1and 2, are similar to those shown in,

the above-mentioned Letters Patent granted to me. The catch or upperportion of said lock or fastening is constructed as follows: k

Upon the inner side of the rail A, figs. 1 and 2, plate 1, is theprojecting-piece. B, upon tlie'end of which is the piece t, having thepoint or edge e, extending partially under the part 6' when locked, andthe lower side It being nearly straight, and resting upon the part c,and the point or edge e is held under the part c by means of the upperend of the lever or catch. 0 bcar-' ing against the part c.

The shank D may be secured to the seat F (represented in section in redlines) by means of screws passing through holes 0 and into the seat, orby means of screws f passing through the seat, first from benm'd andinto the threaded holes in the shank D.

In the device shown in figs. 3 and 4, the projectingpiece B is straightupon its lower side h, and rests upon the top of the part'c','the pointe of the projection extending partially under the part c, the front side'i of the hole in the upper part of the shank 1-) being straight or ofany other desired form, as its. particular shape is immaterial.

In fitting a carriage-seat with these catches, I prefer to attach two ofthe kind shown in figs. 3. and 4 to the back part of the seat, inside,one near each end, and one each of the kind shown in figs. 1 and 2 ateach end of the seat inside; and-,in attaching the rail A to the seat,the hooked projections f are inserted in their sockets i, which areattached to the hack of the seat,

and, the spring 0 being moved to one side upon its pivot a, theprojections vt (which are upon that part of the rail A immediately abovethe ends of the seat) are insertedin their sockets, in the upper ends ofeach shank D, at each end of the seat, and are pressed downv into saidsockets, and the spring- 0 is moved into place again, so that its upperend presses against the projection t, and the rail is then firmlysecured to the seat. By means of this locking-device, the extension-backto a seator the rail is secured or locked to the top of theseat-back, insuch manner that when theextension-baek or rail is attached, the backside of the seat and its extension presents a smooth and plane surface,with no iron projections to mar the appearance of the seat, and this isan important matter, which it is the purpose of my invention toovercome. I

Fig. 2, plate 2, shows a section of the extensionback in place, theprojection t being slightly withdrawn from its socket in order to showthe parts more dis- 'tinctly.

[In practice, the bearing It bears orrests upon the top of the part 0',making a close joint between the seat and its extension-back.

In attaching a high or extension-back to a seat the rail is removed, andthe device shown in figs, 5 and 8 is attached to the inside of theextension-back,- by

screws orrivets, and the hooked projection tis inserted in the socket t,the shoulder or hearing it resting upon the part c, and theextension-back has a rail at each end, with the hooked projections Bt,.shown in fig. 2, plate 1, which are secured .to the seat, as beforedescribed.

The rail upon, each end of the extension-back may have the necessaryprojections thereon, so that, instead of using a rail all around theseat, the carriage-top may be attached directly to the extension-back,and

they both may be attached to the seatat one and the same time.

Figs. 6 and 7 represent a modification of the same device, which isadapted for securing a seat to the body of the wagon, in which B is aflat piece of metal, which may be cast or forged with the curvedprojection t, thereon, similar to that shown in figs. 4 and 5, at theend of which curved part is a smaller projection, l, the wider and flatportion having the holes 0 0 therein, by which to secure it with screwsto the lower edge of each end of the seat or user.

The portion-I has a mortise or socket therein, one end of which iscurved, as at x, to more perfectly correspond with the'curve x upon theprojection t, and the other-end, i, may be straight or vertical.

(The inner surfaces a of the projections t, upon all the modificationsof this locking-device herein shown correspond with the ends I of theirsockets, into which they fit.)

The piece I is secured to the top rail ofa carriage-body,

' a small mortise being made in said rail, immediately under the mortiseor socket in the piece I, and the piece B is secured to the forward partof the lower edge of the seat or its riser. v I

The seat is'then tilted forward, and the projections t inserted in theirsockets in the piece I, and the seat being then tilted or dropped back.to its proper place uponthe body'of the carriage, isfirmly held inplace, andprevented from moving in either direction by the saidprojection t in its socket. 7

It will he seen that all the devices herein shown and deseribedopcrateas a locking-device, to prevent the extension-back, seat, or rail, whenattached, from moving either horizontally or vertically out of place.

When the seat is tilted forward, the projection t is prevented frombeing. entirely withdrawn from the socket by the smaller projection 1,although it is not essential to the successful operation of the lock, asa {fastening-device, that thesmall project-ion I should be uponthe partt, as shown in figs. 6 and 7, yet I prefer to have it so made, to moreefi'ectually prevent the seat from being accidentally detached from itsplace, or from thewagon, when. tilted up for any purpose; and when theseat is at its'proper place in the wagon,

thelower side h of the piece B bears or rests upon the upper side 0 ofthe piece I. a a

' These socket-pieces I being cheap, any desirable number of pairs ofthem may be attached to a wagon, and, by this means, the seat may beplaced at any desirable position upon the body of the carriage.

It will be seen, by this construction of these fastening-devices, that Iobtain a much greater and more the top 0 of the socket, or of the shankD, and, as the whole weight of the carriage-top, when attached to thecarriage in this manner, rests upon these hearings 0', said carriage-topis made much firmer" in its position.

when separately considered; but

1 do claim, as an improvement upon the device shown in Letters Patentnumbered 69,224, before mentioned- The piece .B,'its lower side Itfitting and bearing upon the base e, saidpiece B having thereon thehooked projection t, the whole forming a lock or fastening-device forcarriage-rails, seats, and extension or high backs to seats, allconstructed and operating substantially as herein described, and for thepurposes specified.

CHARLES KREBS. \Vitnesses:

T. .A. CURTIS,

F. 'E. Rrcn.

equally distributed bearing for the projection B, upon I do not claimthe several parts of these devices

